20 METER COUPLING RANGE
20 Me ter Coupling Range
With an FD 50mm f/1.4 lens and ISO 100/21
◦
(ASA 100/21 DIN) film, the New
Canon F-1’s built-in exposure meter couples within a range of EV.- 1 (4 sec. at
f/1.4) to EV 20 (1/2000 sec. at f/22). In aperture-priority AE or stoppeddown AE,
the coupling range is EV-1 to EV 19 (1/1000 sec. at f/22).
EV (Exposure Value) is a numerical value of exposure which is based on proper
combinations of shutter speed and aperture. The camera’s EV coupling range varies
with lens speed and ISO film sensitivity.
41
To Next Page
Loading...
Need help?
General
